需要关于创建Node类(java)的指导吗？

public class Node<T> {
    private T data;
    private Node<T> next;

    public Node(T data) {
        this.data = data;
        this.next = null;
    }

    public T getData() {
        return data;
    }

    public void setData(T data) {
        this.data = data;
    }

    public Node<T> getNext() {
        return next;
    }

    public void setNext(Node<T> next) {
        this.next = next;
    }
}

Node<Integer> node1 = new Node<>(1);
Node<Integer> node2 = new Node<>(2);
Node<Integer> node3 = new Node<>(3);

node1.setNext(node2);
node2.setNext(node3);